Hamwich ... the action on the Ozone Layer was indeed a rare example of the world acting in consort (ok there's been significant breaches from China and other Asian countries to feed their construction industries with cheap insulation) ... it's not exactly gone away ... but has been held back from its rapid enlargement ... hopefully it will really shrink when 'legacy CFCs' degrade out of the atmosphere ... a great achievement, but orders of magnitude less complex than anything related to Climate change/crisis/catastrophy*
K
* delete to suit 🙂
